SOLUTION: how do I solve:
f(x)= 4x - 3
g(x)= x^3 + 2x
Find (f-g)(4)
Algebra.Com
Question 874029: how do I solve:
f(x)= 4x - 3
g(x)= x^3 + 2x
Find (f-g)(4)
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
(f-g)(4) means f(4) - g(4). So we need to calculate f(4) and g(4) first
------------
f(x) = 4x - 3
f(4) = 4(4) - 3
f(4) = 13
------------
g(x) = x^3 + 2x
g(4) = (4)^3 + 2(4)
g(4) = 72
------------
(f-g)(4) = f(4) - g(4)
(f-g)(4) = f(4) - g(4)
(f-g)(4) = 13 - 72
(f-g)(4) = -59
=======================================================
Final Answer:
(f-g)(4) = -59
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